Steering System of a Two-Track Vehicle

Abstract

A steering system of a two-track vehicle has a control rod which is displaceable transverse to the longitudinal axis of the vehicle, and track rods coupled at the two ends of the control rod, which act on steerable wheels of the vehicle such that the wheels are pivoted around the steering axis of rotation by a displacement of the control rod. The control rod is configured divided into two control rod parts each assigned to a wheel and connected to each other via a coupling member which braces the two control rod parts against each other at least temporarily, and at least temporarily enables a relative movement of the two control rod parts in the transverse direction of the vehicle. The coupling member is connected to each of the control rod parts via screw threads. The screw axis of rotation of the screw threads is the longitudinal axis of the control rod. The control rod parts and/or the coupling member are rotatable around the longitudinal axis.

What is claimed is: 
     
         1 . A steering system of a two-track vehicle, comprising:
 a control rod displaceable transversely with respect to a vehicle longitudinal axis, two ends of the control rod being articulatedly connected with track rods that act on steerable wheels of the vehicle such that a displacement of the control rod pivots the steerable wheels about their steering axis of rotational, wherein   the control rod is split into two control rod parts assigned to, in each case, one wheel, and a coupling element by which the two control rod parts are connected to one another, the coupling element at least intermittently supporting the two control rod parts relative to one another and at least intermittently permitting a relative movement of the two control rod parts in a vehicle transverse direction,   the coupling element is connected by way of, in each case, one screw thread to the control rod parts, wherein a screw axis of rotation of the screw thread is a longitudinal axis of the control rod, and   the two control rod parts and/or the coupling element are rotatable about the longitudinal axis;   a steering spindle, which is connected to a steering wheel for a driver of the two-track vehicle, meshes with the coupling element such that a rotation of the steering spindle causes a displacement of the coupling element in the vehicle transverse direction.   
     
     
         2 . The steering system according to  claim 1 , wherein
 for at least a partial decoupling between the coupling element and the two control rod parts, which at least partial decoupling permits relative movement between the two control rod parts, a clutch element is provided, the clutch element being actuatable via an actuator.   
     
     
         3 . The steering system according to  claim 1 , wherein each control rod part is assigned a dedicated motor for adjustment thereof. 
     
     
         4 . The steering system according to  claim 3 , wherein the dedicated motor is an electric motor. 
     
     
         5 . The steering system according to  claim 4 , wherein each dedicated motor acts via a ball screw on an associated one of the two control rod parts for displacement thereof. 
     
     
         6 . The steering system according to  claim 3 , wherein each dedicated motor acts via a ball screw on an associated one of the two control rod parts for displacement thereof.